Fill in the blank.
313 + 212 + 114 = _____
To add fractions, if the denominators are different, find the first common multiple.
Use the first common multiple as the denominator.
Multiples of 3: 3, 6, 9, 12
Multiples of 2: 2, 4, 6, 8, 10, 12
Multiples of 4: 2, 4, 6, 8, 10, 12
First common multiple: 12
313 + 212 + 114
= 3412 + 2612 + 1312
= 64 + 6 + 312
= 61312
= 7112 (Check if the fraction can be reduced to the simplest form.)
Answer(s): 7112
